topic Re: DGNImport in .NET Forum

DGNImport

Anonymous — Thu, 16 Dec 2010 02:10:11 GMT

Hello All

Does anyone know if the functionallity used in the Command DGNImport is customisable via the API?

I've had a look but I can't seem to find it, but I know there are people out there with much more familiarity with it than me.

Thanks

Jason.

Re: DGNImport

Anonymous — Thu, 16 Dec 2010 08:26:40 GMT

Hi there,

I think your problem will besolved with net next block of code.

[CommandMethod("DgnAttach")]
        static public void DgnAttach()
        {
            Database db = Application.DocumentManager.MdiActiveDocument.Database;
            using (Transaction trans = Application.DocumentManager.MdiActiveDocument.TransactionManager.StartTransaction())
            {                
                DBDictionary nod = (DBDictionary)trans.GetObject(db.NamedObjectsDictionaryId, OpenMode.ForWrite);
                string defDictKey = UnderlayDefinition.GetDictionaryKey(typeof(DgnDefinition));
                if (!nod.Contains(defDictKey))                
                {                    
                    using (DBDictionary dict = new DBDictionary())                    
                    {                        
                        nod.SetAt(defDictKey, dict);                        
                        trans.AddNewlyCreatedDBObject(dict, true);                    
                    }                
                }                
                ObjectId idDgnDef;                
                DBDictionary dgnDict = (DBDictionary)trans.GetObject(nod.GetAt(defDictKey), OpenMode.ForWrite);                
                using (DgnDefinition dgnDef = new DgnDefinition())                
                {                    
                    dgnDef.SourceFileName = @"c:\Temp\yourdgnfile.dgn";                    
                    idDgnDef = dgnDict.SetAt("YourDgnFile", dgnDef);                    
                    trans.AddNewlyCreatedDBObject(dgnDef, true);                
                }                
                BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);                
                BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);                
                using (DgnReference dgn = new DgnReference())
                {                    
                    dgn.DefinitionId = idDgnDef;                    
                    btr.AppendEntity(dgn);
                    trans.AddNewlyCreatedDBObject(dgn, true);
                }                
                trans.Commit();           
            }        
        }

If you want to attach a dwf file the above code can be used. You just need to change the DgnDefinition to DwfDefinition ect.

I hope this helps.

Kind regards,

Irvin

Re: DGNImport

Anonymous — Thu, 16 Dec 2010 23:39:50 GMT

Irvin

Thank you for your reply.

However what I really need to do is to replicate some of the functionallity of the DGNIMPORT command not the DGNUNDERLAY (for which your code works perfectly for).

That is I need to translate the entities from the DGN file into native AutoCAD entities.

But once again thank you for your time.

Jason

Re: DGNImport

Anonymous — Fri, 26 Apr 2013 06:26:52 GMT

Hi Jason,

I know I am replying to old thread. But have you got any success about translating the DGN entities to DWG?

I am working on the same thing, so your inputs are greatly appreciated.

Thanks,

Sandeep

Re: DGNImport

Anonymous — Mon, 29 Apr 2013 04:05:46 GMT

Hi Sandeep

Unfortunately, no I did not have any success in this area.

Bentley are able to read in AutoCAD dwg format very well because of Autodesk's RealDWG. However I don't think they have anything similar to offer and AutoCAD's implementation of this doesn't seem to be public.

Sorry.

Jason

Re: DGNImport

michael_vanhoose — Tue, 30 Apr 2013 16:07:43 GMT

this will work.

For

Each file As System.IO.FileInfo Infiles

TryDim sfilename AsString= file.FullName

Dim sfilenamedwg AsString = mypath & System.IO.Path.GetFileNameWithoutExtension(sfilename) & ".dwg"If System.IO.File.Exists(sfilenamedwg) = TrueThenSystem.IO.File.Delete(sfilenamedwg)

Application.DocumentManager.MdiActiveDocument.SendStringToExecute(

"-dgnimport " & sfilename & vbCr & vbCr & vbCr & vbCr, False, False, True)

Application.DocumentManager.MdiActiveDocument.SendStringToExecute(

"saveas" & vbCr & vbCr & sfilenamedwg & vbCr, False, False, True)

Catch ex AsException

MsgBox(ex.ToString)

EndTryNext

Re: DGNImport

Anonymous — Tue, 30 Jul 2013 06:31:05 GMT

Yes michael.vanhoose code really works fine

Thanks man